canvas-lms/spec/helpers/will_paginate_helper_spec.rb

110 lines
3.4 KiB
Ruby

# frozen_string_literal: true
#
# Copyright (C) 2019 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
#
require "will_paginate/collection"
require "folio/page"
describe WillPaginateHelper do
describe "makes accessible pagination link titles" do
before do
klass = Class.new(WillPaginateHelper::AccessibleLinkRenderer) do
def url(page)
"url://#{page}"
end
end
@renderer = klass.new
@collection = Folio::Page.create
end
context "for numbered pages" do
before do
@collection.current_page = 2
@renderer.prepare(@collection, {}, nil)
end
it "when page is current page" do
link = @renderer.send(:page_number, 2)
expect(link).to match('aria-label="Page 2"')
expect(link).to match('class="current"')
expect(link).to_not match("href")
expect(link).to_not match("rel")
end
it "when page is not current page" do
link = @renderer.send(:page_number, 3)
expect(link).to match('aria-label="Page 3"')
expect(link).to match('href="url://3')
end
end
context "for logical pages" do
before do
@collection.previous_page = 2
@collection.next_page = 4
@renderer.prepare(@collection, {}, nil)
end
it "when linking to previous page" do
link = @renderer.send(
:previous_or_next_page,
2, "Previous", "previous_page"
)
expect(link).to match('aria-label="Previous Page"')
expect(link).to match('class="previous_page"')
expect(link).to match('rel="prev"')
expect(link).to match('href="url://2')
end
it "when linking to next page" do
link = @renderer.send(
:previous_or_next_page,
4, "Next", "next_page"
)
expect(link).to match('aria-label="Next Page"')
expect(link).to match('class="next_page"')
expect(link).to match('rel="next"')
expect(link).to match('href="url://4')
end
it "when linking to previous page without page number" do
link = @renderer.send(
:previous_or_next_page,
nil, "Previous", "previous_page"
)
expect(link).to match('aria-label="Previous Page"')
expect(link).to match('class="previous_page disabled"')
expect(link).to_not match("rel")
expect(link).to_not match("href")
end
it "when linking to next page without page number" do
link = @renderer.send(
:previous_or_next_page,
nil, "Next", "next_page"
)
expect(link).to match('aria-label="Next Page"')
expect(link).to match('class="next_page disabled"')
expect(link).to_not match("rel")
expect(link).to_not match("href")
end
end
end
end